Here are some links that may help you:
https://pinballmakers.com/wiki/index.php?title=Files_Section
https://www.pinballmedic.net/coilchart.html#solenoidcoilsleevechart
Also I measured a FL 23-600V/50V from a flipper assembly I have laying around:
Diameters may not be that accurate because I measured them with a ruler.
(all in mm, please convert units to whatever you need)
- full length (start of base plate to end of top plate): 54
- coil/wire part length (end of base plate to start of top plate): 50
- coil/wire part width: 33
- inner plastic tube: inner d12 - outer d12.5
- metal rod/plunger: d11 x 70 - travel distance: 28
- base plate: 38 x 47